Question

what is the approximate area of the circle shown below? 14 cm c a. 616 cm² b. 22 cm² c. 154 cm² d. 44 cm²

Explanation:

Step1: Find the radius

The diameter $d = 14$ cm. The radius $r=\frac{d}{2}$, so $r = \frac{14}{2}=7$ cm.

Step2: Use the area formula

The area formula of a circle is $A=\pi r^{2}$. Substitute $r = 7$ cm and take $\pi\approx\frac{22}{7}$. Then $A=\frac{22}{7}\times7^{2}=\frac{22}{7}\times49 = 22\times7=154$ $cm^{2}$.

Answer:

C. $154$ $cm^{2}$